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Common Pests and Diseases in Pear Tree Cultivation and Their Control Methods
What pests and diseases should be prevented in pear tree cultivation? Here is an introduction to the main pests and diseases in pear tree cultivation: For diseases, generally spray fungicide 7 days after flowering, then spray again at an interval of 15 days. After June, on sunny days, spray the protective agent 1:3:240 Bordeaux mixture 3 to 4 times, at intervals of 15 to 20 days. During the rainy season, fungicides can be sprayed on the trees. ① Black spot disease: 75% carbendazim at 800 times dilution.
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What is soybean frogeye leaf spot? A detailed guide to prevention and control methods
What is soybean frogeye leaf spot and how do you prevent and control it? Looking for guidance. Soybean frogeye leaf spot: (1) Damage and symptoms. Soybean frogeye leaf spot, also known as brown spot, leaf spot or frog-eye disease, is a worldwide disease and an important disease in China's main soybean-producing regions, especially severe in the three northeastern provinces. The pathogen is in eastern Heilongjiang...
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What are the common pests and diseases of pineapple? A detailed guide to prevention and control methods
What pests and diseases of pineapple need to be prevented? Please introduce the following pests and diseases that need to be controlled during pineapple cultivation: wilt disease. After the plant is affected, the leaves become soft and droop, the leaf color changes from pale green to red, the base rots, and finally the whole plant dies. This disease is caused by damage from mealybugs. Prevention and control methods: first, strictly take care not to use diseased seedlings for propagation.
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Control methods for pineapple stem borers and termites
How to control stem borers and termites in pineapple? Please give some advice. For pineapple stem borers and termites, you can refer to the following control methods: When rice straw or wheat straw is used as mulch in pineapple plantations, stem borers often cause damage, biting and eating the heart leaves and young stems of pineapple. You can spray a 500-800 times diluted dimethoate solution for control. Termites near...
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What are the control methods for loofah viral disease?
How do you control loofah viral disease? Please advise: loofah viral disease can be controlled by referring to the following methods: 1. Disease symptoms. Infected young leaves show blister-like spots of uneven light and dark color with an uneven leaf surface, and the leaves are small, some obviously shrunken; infected mature leaves show yellow rings or a mosaic of alternating yellow and green; severely affected leaves become hard and brittle,...
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What are the control methods for soybean root rot?
How should soybean root rot be controlled? What is the best method? Soybean root rot can be controlled with the following methods: 1. Choose disease-resistant varieties. 2. Rotate with non-host crops such as corn, foxtail millet, and sweet potato. 3. When sowing, apply more farmyard manure, potassium fertilizer, phosphorus fertilizer, etc. 4. When sowing, apply metalaxyl granules...
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What to Do About Cotton Boll Rot? A Detailed Guide to Prevention and Control Methods
What to Do About Cotton Boll Rot? What Methods Can Prevent and Control It? In mid to late August, when cotton enters the boll-opening stage, boll rot and rotten bolls often occur. In ordinary fields, the rate of rotten bolls and rotten bolls reaches 10%-15%, and in severely affected fields it reaches over 30%, often causing reduced cotton yield and lower quality. For this reason, there are the following five measures to prevent and control cotton boll rot and rotten bolls:...
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What are the control methods for mulberry rotten head blight?
Mulberry bacterial blight, commonly known as "rotten head blight", is one of the serious mulberry diseases. Symptoms: (1) black withered buds - affected buds and leaves lose their luster at the early stage of disease and die rapidly; (2) new shoot stem rot. The stem base of new shoots shows black rot, with part of the phloem and xylem necrotic; (3) rotten head. After the terminal shoot buds and leaves are infected, the growing point...
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Detailed Explanation of the Occurrence Patterns and Control Methods of Chrysanthemum Powdery Mildew
Chrysanthemum powdery mildew is one of the common diseases in flowers, and it is distributed in both southern and northern China. Chrysanthemum powdery mildew causes poor plant growth, leaf death, and even failure to bloom, seriously affecting greening and beautification results and flower production; it also harms cineraria, pot marigold, coneflower, African daisy, cosmos, aster, dahlia...
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What are the control methods for pineapple seedling heart rot?
How do you control pineapple seedling heart rot? Please give guidance. Pineapple seedling heart rot causes the heart of the seedling to rot and the plant to die. It is mainly caused by heat build-up from piling or by waterlogging. Control methods: avoid piling seedlings for too long, especially during long-distance transport, where piling should be minimized as much as possible to prevent heat, high humidity and poor ventilation from causing heat damage to the seedlings....
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